RedSea_New59
New Member
Ok, so I have 7 small fish (snails and hermits) in my 35 gallon marine reef aquarium....along with several leather coral, pulsating Xenia, Hammer coral and several Zoa's. All is healthy but every 2 days, I get a film or scum on top of the water that I am not sure where it's coming from. If I stick my hand in the water, it also leaves a brownish film om my arm. When I net it out of the tank, it's ok for a day or so...then comes back. This pic is not great but gives you an idea. Any thoughts on what this might be?